#define NMAX 10
#include <fstream>
using namespace std;

ifstream f("permutari.in");
ofstream g("permutari.out");

int sol[NMAX], viz[NMAX];

void afis_sol()
{
    for(int i = 1; i <= n; ++i)
        g<<sol[i]<<" ";
    g<<'\n';
}


void backt(int poz)
{
    if(l == n+1)
    {
        afis_sol();
        return;
    }
    for(int i = 1; i <= n; ++i)
        if(viz[i] ==  0){
            sol[poz] = i;
            viz[i] = 1;
            backt(poz+1);
            viz[i] = 0;
        }
}


int main()
{
    int n;
    backt(1);
    return 0;
}